BLUE SPRINGS, Mo. -- A donation trailer was found burning at a Goodwill store loading dock early Tuesday morning.

A passer-by spotted smoke behind the Goodwill store on Highways 7 and 40 in Blue Springs.

Central Jackson County firefighters found the trailer of the 18-wheeler half full of donations and burning at the loading dock. Smoke filled the store.

Fire officials said the fire did not look suspicious, but a cause has not been determined.